package servlet;

import com.fasterxml.jackson.databind.ObjectMapper;
import model.Blog;
import model.BlogDao;
import model.User;
import model.UserDao;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet("/getAuthorInfo")
public class AuthorInfoServlet extends HttpServlet {
    ObjectMapper objectMapper = new ObjectMapper();
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        String blogId = req.getParameter("blogId");
        if(blogId == null){
            resp.setContentType("text/html; charset=utf8");
            resp.getWriter().write("缺少blogId");
            return;
        }
        BlogDao blogDao = new BlogDao();
        Blog blog = blogDao.getBlog(Integer.parseInt(blogId));
        if(blog == null){
            resp.setContentType("text/html; charset=utf8");
            resp.getWriter().write("blogId错误");
            return;
        }
        UserDao userDao = new UserDao();
        User user = userDao.getUserById(blog.getUserId());
        if(user == null){
            resp.setContentType("text/html; charset=utf8");
            resp.getWriter().write("userId错误");
            return;
        }
        user.setPassword("");
        String respJson = objectMapper.writeValueAsString(user);
        resp.getWriter().write(respJson);
    }
}
